• Meets BPIR regulation
• 316 stainless
• Star drive allows for greater torque.
• Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.
• Pre-drilling generally not required depending on timber and driver (except on board ends).
• Timber is protected from tearing or splitting by the drill tip.
• The self-drilling tip makes the installation quick and easy.
• Small head diameter ensures that the head can sink in cleanly and easily.
• Grooved shank adds extreme holding-down strength.
• Available with three different finishes A) stainless, B) silicone bronze vintage, and C) black coated.
• Smooth head for a perfect barefoot proof finish.

Applications

• Commonly used for hardwood up to 21mm thick and also composite decking
• Decking and cladding to timber substructures.
• Designed especially for hardwood usage.
• Tips for use:
• Use T20 Max Torsion tip to drive screw.

Building Materials

• Merbau
• Spotted Gum
• Blackbutt
• Tallowwood
• Stringybark
• Karri
• Sydney Bluegum
• Jarrah
• Ironbark
• Tasmanian Oak
• Victorian Ash
• Grey Box
• Oak

Note: Screw length depends on the thickness and type of the material you’re working with. Consult a Licensed Building Practitioner (LBP) to determine the best screw length for your application.

NB: These guidelines should be read in conjunction with the New Zealand Building Code (NZS3602, NZS3604, NZS3605, NZS3640 and NZS4203).

Functionality

• Use T20 Max Torsion tip to drive screw.
• SIT® Drive Head: Ensures optimal torque, fast centering, and a snug fit.
• Aggressive Shank: Provides strong grip with reduced drive-in torque—ideal for hardwood without snapping.
• Asymmetrical Thread: Lowers setting torque for easier installation and up to 30% faster screwing with anti-friction coating.
• Pyramid Tip: Minimises timber splitting and speeds up drilling—perfect for hardwood decking and cladding.
• 316 Stainless Steel: Offering high corrosion resistance to reduce the chance of tea-staining and rust, increased fracture torque, and suitability for outdoor and close to water applications.

For best results, we recommend pre-drilling and pre-countersinking holes.

Pre-drilling may be necessary in extremely hard timbers.

For highly corrosive environments, we recommend the use of the 316 Stainless Steel coloured screw only (not vintage or black coated).

Anzor Stainless Steel Decking Screw Brochure